Home / 112,729.05-169,092.39-28,487.49

Finding the Fourth Proportional to 112,729.05, 169,092.39 and 28,487.49

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Solution

The fourth proportional to 112,729.05, 169,092.39 and 28,487.49 is: 42,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,729.05 : 169,092.39 = 28,487.49 : x
  2. Step 2: Convert to fraction form
    112,729.05/169,092.39 = 28,487.49/x
  3. Step 3: Cross multiply
    112,729.05x = 169,092.39 × 28,487.49
  4. Step 4: Simplify right side
    112,729.05x = 4,817,017,769.20
  5. Step 5: Solve for x
    x = 4,817,017,769.20/112,729.05
  6. Step 6: Final answer
    x = 42,730.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.